Morbidity and mortality; weekly report by Communicable Disease Center (U.S.)(
)
in
English
and held by
242 WorldCat member
libraries
worldwide
Contains data on specific diseases as reported by state and territorial health departments and reports on infectious and chronic
diseases, environmental hazards, natural or human-generated disasters, occupational diseases and injuries, and intentional
and unintentional injuries. Also included are reports on topics of international interest and notices of events of interest
to the public health community

Viruses of laboratory rodents by Symposium on Viruses of Laboratory Rodents(
Book
)4
editions published
in
1966
in
English
and held by
216 WorldCat member
libraries
worldwide

Air filtration of microbial particles by United States(
Book
)2
editions published
in
1962
in
English
and held by
80 WorldCat member
libraries
worldwide
Air filtration as a means of removing bacteria is reviewed to provide architects, engineers, hospital administrators, and
research investigators with the benefit of information and experience gained. Various types of filters have been evaluated,
using bacterial organisms aerosolized in particles with diameters of one to five microns as the test simulant. Based on results
of these tests, filters have been placed into four categories: roughing (10 to 60% efficient), medium (60 to 90% efficient),
high (90 to 99% efficient), and absolute (99.99+% efficient). Other methods of air purification, such as electrostatic precipitation,
air washing, ultraviolet light, and incineration are mentioned briefly. Information is provided on filter evaluation methods,
with most of the emphasis on biological techniques. Sections are included on factors to be considered in selecting filters
for removal of bacterial particles and on installing and decontaminating filters